11-17-2013, 07:57 AM
(11-17-2013, 07:18 AM)ingobohn_imp Wrote: Hmm, now I am puzzled... I know that Wikipedia is not THE truth both they say that the octane rating and especially the RON (this is the number which is referred to) is a worldwide standard.
Of course now it could be that US numbers at gas pumps do not state the RON but something different.
USA does not use RON. Instead it is some index using (R+M)/2. and call it octane.
